Well, i have not done anything to them yet and i would like to know if taking them out is tricky at all. I have some experience on workign with engines, and i have common sence. I jsut don't want to pay for labor, but if it is too tricky and there is risk i can break the engine, then forget it. Also i am looking for a book on 2JZ-GTE engines, is there any that you recommend? I am trying to educate myself, so please don't hate or flame me.